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NO160814B - DEVICE FOR LEAKING DETECTION IN A CRYOGENIC STORAGE TANK. - Google Patents

DEVICE FOR LEAKING DETECTION IN A CRYOGENIC STORAGE TANK. Download PDF

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Publication number
NO160814B
NO160814B NO822482A NO822482A NO160814B NO 160814 B NO160814 B NO 160814B NO 822482 A NO822482 A NO 822482A NO 822482 A NO822482 A NO 822482A NO 160814 B NO160814 B NO 160814B
Authority
NO
Norway
Prior art keywords
slats
wall
mandrel
edges
folded
Prior art date
Application number
NO822482A
Other languages
Norwegian (no)
Other versions
NO822482L (en
NO160814C (en
Inventor
Irvin D Johnson
Gary M Timlin
Robert D Yuill
Original Assignee
Marathon Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marathon Oil Co filed Critical Marathon Oil Co
Publication of NO822482L publication Critical patent/NO822482L/en
Publication of NO160814B publication Critical patent/NO160814B/en
Publication of NO160814C publication Critical patent/NO160814C/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/226Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/12Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers for liquefied gas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0147Shape complex
    • F17C2201/0157Polygonal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05Size
    • F17C2201/052Size large (>1000 m3)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01Mounting arrangements
    • F17C2205/0123Mounting arrangements characterised by number of vessels
    • F17C2205/013Two or more vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04Indicating or measuring of parameters as input values
    • F17C2250/0404Parameters indicated or measured
    • F17C2250/0443Flow or movement of content
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/03Dealing with losses
    • F17C2260/035Dealing with losses of fluid
    • F17C2260/038Detecting leaked fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0105Ships

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Examining Or Testing Airtightness (AREA)

Description

Anordning ved foldedører. Device for folding doors.

Oppfinnelsen vedrorer foldedorer av den type som omfatter et antall langsstrakte lameller anbragt i kant-mot-kant-stilling, idet hver sidekant for hver lamell er forsynt med et langsgående spor, en hengslestrimmel forlopende mellom nærbeliggende sidekanter for nabolameller, hvilken hengslestrimmel er av elastisk materiale og forloper kontinuerlig og lamellenes hele lengde og kantene av hengslestrimmelen opptas i sporene i lamellene, samt har et utvidet endeparti som griper inn i et underskåret parti av sporene. The invention relates to folding doors of the type which comprise a number of elongated slats arranged in an edge-to-edge position, each side edge for each slat being provided with a longitudinal groove, a hinge strip running between closely adjacent side edges for neighboring slats, which hinge strip is made of elastic material and extends continuously and the entire length of the slats and the edges of the hinge strip are taken up in the grooves in the slats, and also has an extended end part that engages in an undercut part of the grooves.

Når doren er åpen er lamellene foldet sammen front mot front på den ene side av doråpningen. Doren tar derved minimum av plass og har alle foldedorens egenskaper med hensyn til åpning og luk-ning, installasjon m.v. When the mandrel is open, the slats are folded together face to face on one side of the mandrel opening. The mandrel thereby takes up a minimum of space and has all the properties of the folding mandrel with regard to opening and closing, installation, etc.

i Oppfinnelsen vedrorer en ny og forbedret forbindelse mellom lamellene, hvilken ikke bare tilveiebringer en effektiv forbindelse mellom disse, men også gir en fullstendig tetning mellom nabolamellene slik at man eliminerer passasje av luft, lys og lyd i The invention relates to a new and improved connection between the slats, which not only provides an efficient connection between them, but also provides a complete seal between the neighboring slats so that the passage of air, light and sound is eliminated

gjennom doren. Det er velkjent at lyd og lys vil gå gjennom selv meget små åpninger og, det er derfor meget viktig at forbindelsen mellom nærbeliggende lameller er fullstendig avtettet efter hele lengden av disse. I tillegg til dette er forbindelsen ifbl-ge oppfinnelsen konstruert på en måte som gjor den meget tiltalende av utseende. through the mandrel. It is well known that sound and light will pass through even very small openings and, therefore, it is very important that the connection between adjacent slats is completely sealed along their entire length. In addition to this, the connection according to the invention is constructed in a way that makes it very attractive in appearance.

Hengslestrimler ifolge oppfinnelsen kan lett og med rimelige omkostninger fremstilles ved ekstrudering av hensiktsmessig elastisk materiale og er lett å anbringe på plass i de herfor uttatte spor i lamellenes sidekanter. Hinge strips according to the invention can be produced easily and at reasonable costs by extruding suitable elastic material and are easy to place in place in the grooves made for this purpose in the side edges of the slats.

Ifolge oppfinnelsen er der anordnet i en foldedor av dét innled-ningsvis angitte slag, som kjennetegnes ved at hengslestrimmelen består av et forstykke med et par utadragende flenser som utgjor endene av hengslestrimmelen for opptagelse i sporene i de langsgående kanter og endelameller, idet nevnte formstykke er anordnet således at det i det vesentlige dekker lamellenes sidekanter. According to the invention, there is arranged in a folding mandrel of the kind indicated at the outset, which is characterized by the fact that the hinge strip consists of a front piece with a pair of projecting flanges which make up the ends of the hinge strip for absorption in the grooves in the longitudinal edges and end slats, said shaped piece being arranged so that it essentially covers the side edges of the slats.

Forannevnte samt ytterligere trekk ved oppfinnelsen vil fremgå av den efterfolgende beskrivelse under henvisning til noen ut-forelsesformer vist på tegningene. Fig. 1 er et snitt gjennom et antall lameller og hengsleforbind-elser som danner en utforelsesform av en elastisk dor ifolge oppfinnelsen. The aforementioned as well as further features of the invention will be apparent from the following description with reference to some embodiments shown in the drawings. Fig. 1 is a section through a number of lamellae and hinge connections which form an embodiment of an elastic mandrel according to the invention.

Fig. 2 viser i storre målestokk en detalj av fig. 1. Fig. 2 shows on a larger scale a detail of fig. 1.

Fig. 3 er et delsnitt i likhet med fig. 2, men viser lamellene i sammenfoldet stilling. Fig. 3 is a section similar to fig. 2, but shows the slats in a folded position.

Fig. 4 viser perspektivisk et stykke av en hengslelist. Fig. 4 shows a perspective view of a piece of a hinge strip.

Fig. 5 viser en modifisert utfdreise av en del av en foldeddr med dobbelt hengsleforbindelse. Fig. 6 viser i storre målestokk en del av et snitt gjennom anordningen i fig. 5 i sammenfoldet stilling. Fig. 5 shows a modified view of part of a folding door with a double hinged connection. Fig. 6 shows on a larger scale part of a section through the device in fig. 5 in folded position.

Fig. 7 viser fig. 6 med lamellene i utsvinget stilling. Fig. 7 shows fig. 6 with the slats in the swing-out position.

Fig. 8 viser perspektivisk den modifiserte form for hengslelist. Fig. 9 er et snitt gjennom en modifisert utfdreise av en dobbelt hengslelist. Fig. 10 viser hengslelisten ifolge fig. 9 med lamellene i utsvinget stilling. Fig. 11 viser perspektivisk selve hengslelistkonstruksjonen ifolge fig. 9. Fig. 12 er et snitt gjennom en ytterligere modifikasjon av en dobbelt hengslelist. Fig. 13 viser konstruksjonen ifolge fig. 12 med lamellene delvis svinget fra hverandre. Fig. 8 shows the modified form of hinge strip in perspective. Fig. 9 is a section through a modified extension of a double hinged strip. Fig. 10 shows the hinge list according to fig. 9 with the slats in the swing-out position. Fig. 11 shows a perspective view of the actual hinged strip construction according to fig. 9. Fig. 12 is a section through a further modification of a double hinge strip. Fig. 13 shows the construction according to fig. 12 with the slats partially swung apart.

Fig. 14 viser perspektivisk hengslelisten ifolge fig. 12. Fig. 14 shows a perspective view of the hinge strip according to fig. 12.

Det skal forst vises til tegningene fig. 1-4. Med tallet 10 er som helhet betegnet hengsleforbindeIsen som inngår i denne ut-fdrelsesform av foldeddrkonstruksjonen. Med 12 betegnes den ene side av dorkarmen til hvilken forankringslisten 14 er festet. Doren omfatter et storre antall langstrakte, stive lameller 16 utformet av tre eller annet passende materiale som har plane sidekanter 18 og parallelle for- og baksider 20, som også kan betraktes som inn- og utsider, hvilket gjor lamellene enkle å fremstille. Forbindelsen 10 i denne utforelsesform anvendes for å forbinde kantene av nabolamellene 16 på en måte som nedenfor skal beskrives nærmere. Reference should first be made to the drawings fig. 1-4. With the number 10, the hinge connection that is included in this version of the folding door construction is designated as a whole. 12 designates one side of the mandrel arm to which the anchoring strip 14 is attached. The mandrel comprises a large number of elongated, rigid slats 16 made of wood or other suitable material which have flat side edges 18 and parallel front and back sides 20, which can also be considered as inside and outside, which makes the slats easy to manufacture. The connection 10 in this embodiment is used to connect the edges of the neighboring slats 16 in a manner that will be described in more detail below.

De spesielle detaljer ved understottelsesanordningen for disse lameller og de særlige detaljer ved eventuelle foringer anordnet i dorrammens ovre del utgjor ingen del av oppfinnelsen og er ikke vist da disse detaljer kan være anordnet på en rekke i forskjellige måter. The special details of the support device for these slats and the special details of any liners arranged in the upper part of the mandrel frame form no part of the invention and are not shown as these details can be arranged in a number of different ways.

Forbindelsene 10 omfatter et langstrakt innlegg som kan være et formstykke som forloper kontinuerlig efter hele lengden av lamellene. Hengsleforbindelsen eller formstykket 10 omfatter to hovedpartier 22 med stort sett triangulær form og omfatter frem-spring 24 med utvidede ende- eller kantpartier 26 som er bereg-,net på å opptas i spor i nærbeliggende lameller 16. Hovedpartiene 22 er innbyrdes forbundet ved et hengslestykke 28, idet det bvrige av hovedpartiene adskilles av en spalte 30. Dette innlegg er fremstillet av en vinylplast e.l., og hengslestykket 28 danner en hengsling eller tilveiebringer en hengsleakse. Innleggene eller formstykkene danner en meget "nær" hengsling, idet det er et meget lite areal av elastisk materiale som ligger fri av lamellene 16 eller av hovedpartiene av formstykket, slik at det fås et meget begrenset område som tillater boyelighet i sideret-ning, men allikevel tillater nodvendig innbyrdes dreiebevegelse mellom nabolamellene. The connections 10 comprise an elongated insert which can be a shaped piece which runs continuously along the entire length of the slats. The hinge connection or shaped piece 10 comprises two main parts 22 with a largely triangular shape and includes protrusions 24 with extended end or edge parts 26 which are designed to be received in grooves in nearby slats 16. The main parts 22 are interconnected by a hinge piece 28, the rest of the main parts being separated by a gap 30. This insert is made of a vinyl plastic or the like, and the hinge piece 28 forms a hinge or provides a hinge axis. The inserts or moldings form a very "close" hinge, in that there is a very small area of elastic material that is free from the lamellae 16 or from the main parts of the molding, so that a very limited area is obtained which allows flexibility in the lateral direction, but nevertheless, the necessary mutual turning movement between neighboring slats is allowed.

Det viktigste trekk ved denne utfbrelse ligger i anordningen av en kontinuerlig elastisk fjærende tetningslist, som strekker ség mellom lamellene med tetningslisten utgjorende et konstruksjons-stykke, som etablerer helt tett forbindelse mellom lamellene og således eliminerer passasje av luft, lys, smuss og stoy. The most important feature of this design lies in the arrangement of a continuous elastically springy sealing strip, which stretches between the slats with the sealing strip constituting a structural piece, which establishes a completely tight connection between the slats and thus eliminates the passage of air, light, dirt and noise.

Det skal nu vises til fig. 5 - 14. Med tallet 110 betegnes den elastiske hengslelist ifolge denne utfbrelse. Den inngår i en foldedbr hvor lamellene er betegnet med 112, og er av stivt tre-materiale. Som vist i fig. 5, er et antall lameller innbyrdes forbundet ved hengslelister 110, med lamellene 112 forlopende over den doråpning som skal kunne lukkes ved foldedbren. Som vist er en kant av foldedoren forbundet med dorkarmen 114 ved hjelp av en elastisk list 116, som er festet ved hjelp av en trelist 118 med skruebefestigelse 120. Denne spesielle forbindelse mellom dorkarmen 114 utgjor ingen del av nærværende oppfinnelse. Lamellene 112 er fortrinnsvis av tre eller annet passende stivt materiale og har stoirt. sett plane overflater og også plane ver-tikale sidekanter 122. I hver av kantene 122 for lamellene 112 er der tatt ut et kontinuerlig langsgående spor 124 som har kon-stant bredde. Sideveggene av sporet 124 forloper således parall-elt med hverandre og på samme avstand fra lamellens 112 ytter-og innersider. Reference should now be made to fig. 5 - 14. The number 110 denotes the elastic hinge strip according to this embodiment. It is part of a folded frame where the slats are designated 112, and is made of rigid wood material. As shown in fig. 5, a number of slats are connected to each other by hinge strips 110, with the slats 112 extending over the door opening which must be able to be closed by folding the door. As shown, one edge of the folding door is connected to the mandrel arm 114 by means of an elastic strip 116, which is fixed by means of a wooden strip 118 with screw fastening 120. This particular connection between the mandrel arm 114 does not form part of the present invention. The slats 112 are preferably made of wood or other suitable rigid material and are large. set flat surfaces and also flat vertical side edges 122. In each of the edges 122 for the lamellae 112, a continuous longitudinal groove 124 has been taken out which has a constant width. The side walls of the groove 124 thus run parallel to each other and at the same distance from the outer and inner sides of the lamella 112.

Dobbelt-hengslelisten 110 er også fortrinnsvis fremstillet av et elastisk materiale slik som vinylplast med fjærende egenskaper. Hengslelisten 110 har form av et kontinuerlig legeme som strekker seg fra bverst til nederst av lamellene 112, og danner effektiv tetning for forbindelsen mellom nabolameller 112. The double-hinged strip 110 is also preferably made of an elastic material such as vinyl plastic with resilient properties. The hinge strip 110 has the form of a continuous body that extends from the top to the bottom of the slats 112, and forms an effective seal for the connection between neighboring slats 112.

Den dobbelte hengslelist omfatter en normalt plan innervegg 126, med en dimensjon stort sett lik den kombinerte tykkelse av to lameller 112 når de er lagt side mot side, som vist i fig. 6. The double hinged strip includes a normally planar inner wall 126, with a dimension substantially equal to the combined thickness of two slats 112 when placed side by side, as shown in fig. 6.

En ytre elastisk vegg 128 er normalt beliggende på en viss avstand fra innerveggen 126, men ytterveggen 128 har noe mindre bredde enn innerveggen 126, slik dette sees i fig. 6. Kantene av veggene 126 og 128 er innbyrdes forbundet ved hjelp av sidevegger 130, som omfatter en indre del 132 perpendikulær på veggen 126 og veggen 128. I ett med det perpendikulære parti 132 er det utformet et buet parti 13 4, som er konkavt-konvekst og forbinder kantene av veggen 128 med kantene av det perpendikulære parti 132 for sideveggen 130. Det buede parti 134 danner en tiltalende avslutning av hengslepartiet og tjener også til å avsti-ve dette område, i hvilket hengslet vil boye seg når lamellene 112 svinges ut fra hverandre til den stilling som er vist i fig. 7. An outer elastic wall 128 is normally located at a certain distance from the inner wall 126, but the outer wall 128 has a somewhat smaller width than the inner wall 126, as can be seen in fig. 6. The edges of the walls 126 and 128 are interconnected by means of side walls 130, which comprise an inner part 132 perpendicular to the wall 126 and the wall 128. In one with the perpendicular part 132, a curved part 13 4 is formed, which is concave -convex and connects the edges of the wall 128 with the edges of the perpendicular part 132 for the side wall 130. The curved part 134 forms an attractive end to the hinge part and also serves to stiffen this area, in which the hinge will bend when the slats 112 are swung from each other to the position shown in fig. 7.

I ett med innerveggen 126 er der utformet et par på avstand fra hverandre og loddrett på veggen 126 forlopende festeflenser, ribber e.l. 136, som har en tykkelse litt mindre enn bredden av sporene 124 og som normalt ligger på en viss avstand fra hverandre, slik at flensene 136 er innbyrdes parallelle når sporene 124 er parallelle med lamellene 112 beliggende mot hverandre i sammenfoldet stilling. Flensene 136 er kontinuerlige i lengderetning, og hver overflate av disse flenser 136 er forsynt med et antall ribber 138 e.l., som forloper på skrå mot veggen 126. Disse ribber 138 vil således tjene til å fastholde flensene 136 >i sporene 124, men på grunn av deres skrå forlop kan de lett skyves på plass inne i sporene 124. Ribbene 138 e.l. er tilstrekkelige til å holde flensene på plass i sporene, men et passende klebemiddel eller annen sammenbinding kan komme til anvendelse for permanent befestigelse av flensene i sporene. In one with the inner wall 126, a pair of attachment flanges, ribs etc. are designed at a distance from each other and extending vertically on the wall 126. 136, which has a thickness slightly less than the width of the grooves 124 and which normally lies at a certain distance from each other, so that the flanges 136 are parallel to each other when the grooves 124 are parallel to the slats 112 situated against each other in the folded position. The flanges 136 are continuous in the longitudinal direction, and each surface of these flanges 136 is provided with a number of ribs 138 etc., which extend obliquely towards the wall 126. These ribs 138 will thus serve to retain the flanges 136 in the grooves 124, but due due to their inclined course, they can easily be pushed into place inside the grooves 124. The ribs 138 et seq. are sufficient to hold the flanges in place in the slots, but a suitable adhesive or other bonding agent may be used to permanently fix the flanges in the slots.

Når dorlamellene 112 beveges fra sammenfoldet stilling, som vist i fig. 6, til utfoldet stilling, som vist i fig. 7, skjer det en dobbelt hengslevirkning, idet veggen 126 danner hengsleforbindelse omkring sitt midtparti som boyes til en utad konveks flate. Den ytre vegg 128 boyer seg utover i en bue som er utad konveks. De buede partier av sideveggene 130 boyer seg også slik at de får en sterkere krumning, og partiene 132 av sideveggene 130 forloper på skrå utover i forhold til veggen 126. Lamellenes 112 hengslelister har således den form som er vist i fig. 6, når doren er sammenfoldet, men inntar mer eller mindre den stilling som er vist i fig. 7, når doren er foldet ut. Elastisiteten i det plastmateriale, som listene er fremstillet av, vil imidler-tid bevirke at lamellene soker å innta sin sammenfoldede stilling, slik at doren av elastisiteten i listene holdes i sammenfoldet stilling langs dorkarmen 114. When the door slats 112 are moved from the folded position, as shown in fig. 6, to the unfolded position, as shown in fig. 7, there is a double hinge effect, as the wall 126 forms a hinge connection around its middle part which bends to an outwardly convex surface. The outer wall 128 bends outwards in an arc which is outwardly convex. The curved parts of the side walls 130 also bend so that they have a stronger curvature, and the parts 132 of the side walls 130 run obliquely outwards in relation to the wall 126. The hinge strips of the slats 112 thus have the shape shown in fig. 6, when the mandrel is folded, but assumes more or less the position shown in fig. 7, when the mandrel is unfolded. The elasticity of the plastic material from which the strips are made will, however, cause the slats to seek to assume their folded position, so that the mandrel of the elasticity in the strips is kept in a folded position along the mandrel arm 114.

Som det tydelig fremgår av fig. 6, dekker hengslelisten fullstendig kantene av lamellene 112, og beskytter således disse i fra enhver beskadigelse ved beroring med f.eks. mbbler. Når doren er sammenfoldet fås en meget tiltalende effekt av sidekantene, og også når doren er foldet ut, vil skjotforbindelsen mellom lamellene ta seg tiltalende ut med en jevnt krummet flate og hengslet vil samtidig danne en effektiv tetning langsetter hele sin lengde. As is clear from fig. 6, the hinge strip completely covers the edges of the slats 112, and thus protects these from any damage by contact with e.g. mbbler. When the mandrel is folded, a very attractive effect is obtained from the side edges, and also when the mandrel is unfolded, the joint connection between the slats will look appealing with an evenly curved surface and the hinge will at the same time form an effective seal along its entire length.

Fig. 9-11 viser en ytterligere modifisert utfdreise av hengslelisten, der som helhet er betegnet med 140. Listen forbindor innbyrdes de stive lameller 142 med spor 144 forlopende innover fra kantene og avsluttet i utvidede kanaler e.l. 146. Fig. 9-11 shows a further modified version of the hinge strip, which as a whole is denoted by 140. The strip interconnects the rigid lamellas 142 with grooves 144 extending inwards from the edges and ending in extended channels or the like. 146.

Hengslelisten 140 omfatter et hult rdrformet parti 148, med stort sett oval form og med den store akse forlopende parallell med kantene av lamellene 142 når disse ligger mot hverandre, som vist i fig. 9. Det hule parti 148 kan betraktes som bestående av en yttervegg 150 og en innervegg 152, forbundet med buede kantpartier 154. Ytterveggen 150 er fortrinnsvis noe tykkere enn innerveggen 152, og er forsynt med ut til siden ragende ribber 156 i de ovre hjdrner, ved forbindelsen med kantpartiene 154. Ribbene 156 er utformet i ett med den rdrformede del 148 som strekker seg på skrå ut til siden, som vist i fig. 9. Innerveggen 152 er forsynt med et par ribber eller flenser 158, som har i tverr-snitt V-formede endekanter eller utvidelser 160 for opptagelse i kanalen 146, hvorved flensene 158, når de innfores i sporet 144 med de V-formede vulster 160, tillater innfdring i sporet inntil de utvidede partier 160 griper inn i kanalen 146. Derved fastholdes flensene mot å kunne bevege seg ut av sporene igjen, og man får en fastlåsning av flensene 158 til lamellene 142, The hinge strip 140 comprises a hollow cylindrical part 148, with a largely oval shape and with the major axis extending parallel to the edges of the slats 142 when these lie against each other, as shown in fig. 9. The hollow part 148 can be considered as consisting of an outer wall 150 and an inner wall 152, connected by curved edge parts 154. The outer wall 150 is preferably somewhat thicker than the inner wall 152, and is provided with ribs 156 projecting to the side in the upper corners, at the connection with the edge parts 154. The ribs 156 are formed in one with the wheel-shaped part 148 which extends obliquely out to the side, as shown in fig. 9. The inner wall 152 is provided with a pair of ribs or flanges 158, which have V-shaped end edges or extensions 160 in cross-section for reception in the channel 146, whereby the flanges 158, when inserted into the groove 144 with the V-shaped beads 160 , allows insertion into the groove until the extended parts 160 engage in the channel 146. Thereby the flanges are held against being able to move out of the grooves again, and the flanges 158 are locked to the slats 142,

uten at det er nddvendig å anvende lim eller andre passende bindemidler. without the need to use glue or other suitable binders.

Den rdrformede del 148 er videre forsynt med et par utad på skrå forlopende ribber 162 anordnet utenfor ribbene 158. Ribbene 162 er avsmalnende i retning utover, slik at de ytterst ute danner en skarp kant eller egg som ligger an mot endene av lamellene 142, som vist i fig. 9, når lamellene 142 er i sammenfoldet stilling. Når lamellene 142 foldes ut, vil disse ribber 162 The wheel-shaped part 148 is further provided with a pair of outwardly sloping ribs 162 arranged outside the ribs 158. The ribs 162 are tapered in the outward direction, so that at the outermost they form a sharp edge or egg which rests against the ends of the lamellae 142, which shown in fig. 9, when the slats 142 are in the folded position. When the slats 142 are unfolded, these ribs 162

boye seg og gli over de ytre hjdrner av lamellene 142, som vist bend and slide over the outer corners of the slats 142, as shown

i fig. 10, hvorved dannes en effektiv tetning av rommet mellom lamellene. in fig. 10, whereby an effective seal of the space between the slats is formed.

Fig. 12 - 14 viser ytterligere en modifisert form for dobbelt Fig. 12 - 14 show a further modified form of double

I IN

hengslet, for forbindelse av lameller 172 på samme måte som lamellene 142. Dobbelt-hengslet 170 omfatter en hul<1>del 174, hvori inngår en ytre vegg 176 og en indre vegg 178, : anbragt på en viss innbyrdes avstand og forbundet med hverandre ved krumme sidevegger 180. Den ytre vegg 176 er noe tykkere enn den indre vegg og er forsynt med fremspringende ribber 182, og utsiden av veggen 176 er ganske svakt konkav under normal stilling av lamellene 172 slik at disse ligger inntil hverandre. Hver av lamellene 172 er forsynt med et spor 184, som innerst inne går over i en storre kanal 186, som opptar det V-formede endeparti eller vulsten 188 på den ytre kant av et par ribber 190, som er press-et inn i spor 184, slik at vulstene 188 blir fastholdt i kanal-ene 186. Innsiden av ytterveggen 176 er stort sett parallell med innsiden av innerveggen 178 når lamellene 172 er anordnet mot hverandre. Derved dannes et åpent rom med den indre og ytre vegg som danner hengsleaksel når lamellene 172 foldes fra hverandre, hvilket vil være tilboyelig til å krumme veggene 176 og 178, slik at det dannes to dreieakser for lamellene 172. Den rdrformede del 174 er forsynt med et par fremspringende ribber 192, som forloper efter hele deres lengde, og er avsmalnende i retning utover slik at de ligger an mot de ytre hjorner av lamellene 172 og derved danner en effektiv tetningslist. the hinge, for connecting slats 172 in the same way as the slats 142. The double hinge 170 comprises a hollow part 174, which includes an outer wall 176 and an inner wall 178, placed at a certain distance from each other and connected to each other by curved side walls 180. The outer wall 176 is somewhat thicker than the inner wall and is provided with projecting ribs 182, and the outside of the wall 176 is quite slightly concave during the normal position of the slats 172 so that they lie next to each other. Each of the lamellae 172 is provided with a groove 184, which in the innermost part passes into a larger channel 186, which occupies the V-shaped end portion or bead 188 on the outer edge of a pair of ribs 190, which are pressed into grooves 184, so that the beads 188 are retained in the channels 186. The inside of the outer wall 176 is largely parallel to the inside of the inner wall 178 when the slats 172 are arranged against each other. Thereby, an open space is formed with the inner and outer walls forming a hinge axis when the slats 172 are folded apart, which will tend to curve the walls 176 and 178, so that two axes of rotation are formed for the slats 172. The wheel-shaped part 174 is provided with a pair of protruding ribs 192, which run along their entire length, and are tapered in the outward direction so that they rest against the outer corners of the slats 172 and thereby form an effective sealing strip.

Som vist i fig. 5-14 kan forskjellige former anvendes så lenge der anvendes en dobbelt hengsleanordning med en hengslelistkon-struksjon som er hul og fortrinnsvis konstruert av plastmateriale, som beskrevet i forbindelse med fig. 5-8. Også forskjellige måter å innfore listens flenser i kantpartiet av lamellene As shown in fig. 5-14, different shapes can be used as long as a double hinge device is used with a hinge strip construction which is hollow and preferably constructed of plastic material, as described in connection with fig. 5-8. Also different ways of inserting the flanges of the strip in the edge part of the slats

i in

kan komme til anvendelse for å gjore anordningen billigere og lettere å fremstille, samt hindre beskadigelse av lamellene ved at hengslelisten dekker disses endepartier. Når kantene av lamellene er fullstendig dekket i alle stillinger, er der ingen nodvendighet for spesiell behandling eller "finish" a'v kantene. Tre av billig beskaffenhet kan derved anvendes. Ribbene tjener til effektiv tetning under enhver stilling av lamellene innbyrdes, og de tykkere ytre vegger, som er vist i fig. 9 14, tjener til å utove en viss motstand mot dreiebevegelse av, den ytre vegg til konkav form eller konveks form avhengig av den hengsle- can be used to make the device cheaper and easier to produce, as well as prevent damage to the slats by the hinge strip covering their end parts. When the edges of the slats are completely covered in all positions, there is no need for special treatment or "finish" on the edges. Wood of cheap quality can thereby be used. The ribs serve for effective sealing in any position of the slats against each other, and the thicker outer walls, which are shown in fig. 9 14, serves to create a certain resistance to rotational movement of the outer wall into a concave shape or a convex shape depending on the hinge-

type som brukes. type used.

Oppfinnelsen er ikke begrenset til det viste og beskrevne. Tall-rike modifikasjoner kan således gjores uten å avvike fra opp-finnelsens ramme. The invention is not limited to what is shown and described. Numerous modifications can thus be made without deviating from the scope of the invention.

Claims (10)

1. Foldedor omfattende et antall langsstrakte lameller anbragt i kant-mot-kant-stilling, idet hver sidekant for hver lamell er forsynt med et langsgående spor, en hengslestrimmel forlopende mellom nærbeliggende sidekanter for nabolameller, hvilken hengslestrimmel er av elastisk materiale og forloper kontinuerlig og lamellenes hele lengde og kantene av hengslestrimmelen opptas i sporene i lamellene, samt har et utvidet endeparti som griper inn i et underskåret parti av sporene, karakterisert ved at hengslestrimmelen består av et formstykke (10, 110, 140, 170) med et par utadragende flenser (24, 136, 158, 190) som utgjor endene av hengslestrimmelen for opptagelse i sporene (124,1. Folded door comprising a number of elongated slats arranged in an edge-to-edge position, each side edge for each slat being provided with a longitudinal groove, a hinge strip running between closely adjacent side edges of neighboring slats, which hinge strip is of elastic material and runs continuously and the entire length of the slats and the edges of the hinge strip are taken up in the grooves in the slats, and have an extended end part that engages in an undercut part of the grooves, characterized in that the hinge strip consists of a shaped piece (10, 110, 140, 170) with a pair of protruding flanges (24, 136, 158, 190) which form the ends of the hinge strip for reception in the grooves (124, 144, 184) i de langsgående kanter (18, 122) og endelameller (16, 112, 142, 172), idet nevnte formstykke er anordnet således at det i det vesentlige dekker lamellenes sidekanter.144, 184) in the longitudinal edges (18, 122) and end slats (16, 112, 142, 172), the said molding being arranged so that it essentially covers the side edges of the slats. 2. Foldedor som angitt i krav 1 hvor formstykket er oppdelt i to hovedpartier (22), hver med en flens (24) som kan opptas i et spor i en lamell (16), idet de to partier (22) er innbyrdes forbundet langs tilstotende kanter ved hjelp av et tynt forbindel-sesområde (28), karakterisert ved at når flensene (24) er opptatt i sporene i respektive lameller, vil partiene (22) ligge an mot sidekantene (18) av lamellene og forbindelses-området (28) utgjor hengsleaksen for dreiebevegelsen av lamellene i forhold til hverandre.2. Folding mandrel as specified in claim 1, where the mold piece is divided into two main parts (22), each with a flange (24) which can be received in a groove in a slat (16), the two parts (22) being mutually connected along adjacent edges by means of a thin connection area (28), characterized in that when the flanges (24) are engaged in the grooves in respective slats, the parts (22) will lie against the side edges (18) of the slats and the connection area (28) ) forms the hinge axis for the rotational movement of the slats in relation to each other. 3. Foldedor som angitt i krav 2 hvor hvert parti (22) har stort sett triangulær profil, karakterisert ved at de blottlagte flater (30) av de to partier når de er i gjensidig anlegg, utgjor anleggsorgan for begrensning av utfoldingsbeveg-elsen av nabolamellene.3. Folded door as stated in claim 2 where each part (22) has a largely triangular profile, characterized in that the exposed surfaces (30) of the two parts when they are in mutual contact form a construction device for limiting the unfolding movement of the neighboring slats . 4. Foldedor som angitt i krav 2, karakterisert ved at flensen (24) for hvert parti (22) er avskrådd i forhold til den blottlagte flate (30) av nevnte parti på en sådan måte at i dorens utfoldede stilling hvor de blottlagte flater (30) for partiene er i anlegg, er nabolamellene i vinkelstillirig til hverandre, mens i foldet stilling av doren er nabolamellene parallelle.4. Folding mandrel as specified in claim 2, characterized in that the flange (24) for each part (22) is chamfered in relation to the exposed surface (30) of said part in such a way that in the mandrel's unfolded position where the exposed surfaces ( 30) for the parts in contact, the neighboring slats are at right angles to each other, while in the folded position of the mandrel the neighboring slats are parallel. 5. Foldedor som angitt i krav 1, karakterisert ved at formstykkene (110, 140, 170) omfatter en hul, rorformet del begrenset av indre (126, 152, 178) og ytre (128, 150, 176) stort sett parallelle på avstand fra hverandre anordnede flater og en sidevegg (120, 154, 180) som forbinder kantene av nevnte indre og ytre vegger.5. Folded mold as stated in claim 1, characterized in that the mold pieces (110, 140, 170) comprise a hollow, tube-shaped part limited by inner (126, 152, 178) and outer (128, 150, 176) largely parallel in distance spaced apart surfaces and a side wall (120, 154, 180) connecting the edges of said inner and outer walls. 6. Foldedor som angitt i krav 5, karakterisert ved at flensene (136, 158, 190) for opptagelse i sporene (124, 144, 184) i nabolameller (112, 142, 172) rager ut fra den indre vegg (126, 152, 178) av det hule formstykke.6. Folded door as specified in claim 5, characterized in that the flanges (136, 158, 190) for absorption in the grooves (124, 144, 184) in neighboring slats (112, 142, 172) protrude from the inner wall (126, 152 , 178) of the hollow mold piece. 7. Foldedor som angitt i krav 6, karakterisert ved at de indre (126) og ytre (128) vegger av det hule formstykke er plane og at flensene (136) for opptagelse i sporene i lamellene er perpendikulære med nevnte indre vegg på en sådan måte at i dorens foldede stilling er nabolamellene parallelle med hverandre med den indre vegg (126) av formstykket i anlegg mpt sidekantene (122) av lamellene, mens i utfoldet stilling er det hule formstykke deformert med den indre vegg boyd i en spiss vinkel og den ytre vegg boyd utover.7. Folded door as stated in claim 6, characterized in that the inner (126) and outer (128) walls of the hollow mold are flat and that the flanges (136) for absorption in the grooves in the slats are perpendicular to said inner wall on such way that in the folded position of the mandrel the neighboring lamellas are parallel to each other with the inner wall (126) of the mold piece in contact with the side edges (122) of the lamellas, while in the unfolded position the hollow mold piece is deformed with the inner wall boyd at an acute angle and the outer wall boyd outwards. 8. Foldedor som angitt i krav 7, karakterisert ved at sideveggene (130) av det hule formstykke omfatter et parti (132) perpendikulært på den indre vegg (126) og et konkavt butt parti (134) forbundet med den ytre vegg (128) som bevirker elas-tisitet av dette i utfoldet stilling av doren.8. Folded mold as stated in claim 7, characterized in that the side walls (130) of the hollow mold piece comprise a part (132) perpendicular to the inner wall (126) and a concave blunt part (134) connected to the outer wall (128) which causes elasticity of this in the unfolded position of the mandrel. 9. Foldedor som angitt i krav 6, karakterisert ved at sideveggene (154, 180) som forbinder de indre og ytre vegger av det hule formstykke er konvekst krummet og innenfor veggen (152, 178) er anordnet på en viss avstand i forhold til sidekantene av lamellene (142, 172).9. Folding door as stated in claim 6, characterized in that the side walls (154, 180) which connect the inner and outer walls of the hollow mold are convexly curved and within the wall (152, 178) are arranged at a certain distance in relation to the side edges of the slats (142, 172). 10. Foldedor som angitt i krav 9, karakterisert ved at det hule formstykke omfatter et par skråttforlopende uttil siden ragende fliker (162, 196) som ved kantene samvirker med de ytre hjornekanter av nabolameller (142, 172) i alle stillinger av doren, at flikene (162, 192) er avskrådd utover, at flikene (162, 192) rager ut fra enden av den indre vegg (152, 178) av det hule formstykke, og at den ytre vegg (150, 176, 236) av det hule formstykke er tykkere enn den indre vegg og på i og for seg kjent måte er forsynt med sidefremspring (156, 182) som er stort sett parallelle med sidekantene av lamellene (142, 172) når doren er i foldet stilling.10. Folding mandrel as specified in claim 9, characterized in that the hollow shaped piece comprises a pair of obliquely extending outwardly projecting flaps (162, 196) which at the edges interact with the outer corner edges of neighboring slats (142, 172) in all positions of the mandrel, that the tabs (162, 192) are chamfered outwards, that the tabs (162, 192) protrude from the end of the inner wall (152, 178) of the hollow shaped piece, and that the outer wall (150, 176, 236) of the hollow mold piece is thicker than the inner wall and in a manner known per se is provided with side projections (156, 182) which are largely parallel to the side edges of the slats (142, 172) when the mandrel is in the folded position.
NO822482A 1981-07-20 1982-07-19 DEVICE FOR LEAKING DETECTION IN A CRYOGENIC STORAGE TANK. NO160814C (en)

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Also Published As

Publication number Publication date
FR2509839B1 (en) 1988-03-18
JPH0315080B2 (en) 1991-02-28
US4404843A (en) 1983-09-20
SE8204374L (en) 1983-01-21
NO822482L (en) 1983-01-21
SE459371B (en) 1989-06-26
FR2509839A1 (en) 1983-01-21
NO160814C (en) 1989-05-31
JPS5817299A (en) 1983-02-01
SE8204374D0 (en) 1982-07-19

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